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Grade 34 Titanium vs. S28200 Stainless Steel

Grade 34 titanium belongs to the titanium alloys classification, while S28200 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 34 titanium and the bottom bar is S28200 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 20
45
Fatigue Strength, MPa 310
430
Poisson's Ratio 0.32
0.28
Reduction in Area, % 34
57
Shear Modulus, GPa 41
77
Shear Strength, MPa 320
610
Tensile Strength: Ultimate (UTS), MPa 510
870
Tensile Strength: Yield (Proof), MPa 450
460

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Maximum Temperature: Mechanical, °C 320
900
Melting Completion (Liquidus), °C 1660
1380
Melting Onset (Solidus), °C 1610
1330
Specific Heat Capacity, J/kg-K 540
480
Thermal Expansion, µm/m-K 8.7
18

Otherwise Unclassified Properties

Base Metal Price, % relative 55
12
Density, g/cm3 4.5
7.6
Embodied Carbon, kg CO2/kg material 33
2.8
Embodied Energy, MJ/kg 530
41
Embodied Water, L/kg 200
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
330
Resilience: Unit (Modulus of Resilience), kJ/m3 960
540
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
26
Strength to Weight: Axial, points 31
32
Strength to Weight: Bending, points 31
27
Thermal Shock Resistance, points 39
17

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0.1 to 0.2
17 to 19
Copper (Cu), % 0
0.75 to 1.3
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
57.7 to 64.1
Manganese (Mn), % 0
17 to 19
Molybdenum (Mo), % 0
0.75 to 1.3
Nickel (Ni), % 0.35 to 0.55
0
Nitrogen (N), % 0 to 0.050
0.4 to 0.6
Oxygen (O), % 0 to 0.35
0
Palladium (Pd), % 0.010 to 0.020
0
Phosphorus (P), % 0
0 to 0.045
Ruthenium (Ru), % 0.020 to 0.040
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98 to 99.52
0
Residuals, % 0 to 0.4
0